Practical comparison of two turbulent models |
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Authors: | A. D. Savel’ev |
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Affiliation: | (1) Faculty of Engineering, Kingston University, Roehampton Vale, Friars Avenue, London SW15 3DW, UK; |
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Abstract: | A numerical study of a number of viscous compressible gas flows, using a one-parameter differential turbulence model of Spalart-Olmaras and another, obtained by changing the variables in the two-parameter SST model of Menter, is conducted. Calculations are based on Reynolds averaged two-dimensional Navier-Stokes equations, using a difference scheme of the fifth order of approximation. The problems of a subsonic flat plate, spoon-formed cavern, Jones airfoil overflow, separated flow in front of the angle of compression and dissipation of a single vortex are considered. These results permit me to better define the limits of applicability of the turbulence models considered, and to note their possible shortcomings. |
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